LSCC 2014 "Crafting DevOps: Applying Software Craftsmanship to DevOps"
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My thoughts on applying software craftsmanship principles to the world on DevOps. Presented at the London Software Craftsmanship Community, July 18th 2014
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LSCC 2014 "Crafting DevOps: Applying Software Craftsmanship to DevOps"
- 1. “Crafting DevOps” Applying software craftsmanship to DevOps… Daniel Bryant daniel.bryant@opencredo.com @danielbryantuk
- 2. Software Craftsmanship More than just clean code… …but how does this apply to (Dev)Ops
- 3. Continuous Delivery “Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.” Principle 1; 12 Principles behind the Agile Manifesto http://agilemanifesto.org/principles.html
- 4. Continuous Delivery • Continuous Integration++ • Many of us having been doing this for years… • “DevOps” - just a label (or a philosophy)?
- 5. Lets break it down… 1. Operational influence on application code – Fault tolerance, “Antifragility” 2. The build pipeline – Fast feedback (and quality controls) 3. “Infrastructure as Code” – Software Defined Everything (SDN, SDDC)
- 6. 1. Application (*service) Craftsmanship
- 8. Antifragility • The opposite of fragile – Must be robust first – Fault-tolerant design patterns • Netflix are best-in-class – bit.ly/1gs5n3q 17/07/2014 @danielbryantuk
- 9. 2. Crafting a build pipeline • Build tools – Jenkins, Bamboo etc. • “Ops as a Service” deployment orchestration – Rundeck (rundeck.org) • Supports good development – “Communication, simplicity, feedback, courage”
- 10. 3. Crafting “Infrastructure as Code” • Continuous Integration for Infrastructure – DevOps Weekly (Gareth Rushgrove) – www.ustream.tv/recorded/46670676 • Infrastructure test pyramid 17/07/2014 @danielbryantuk
- 11. Crafting Puppet • TDD your infrastructure – puppetlabs.com/blog/test-driven-development- with-puppet • Rspec Puppet – rspec-puppet.com/tutorial/ • Puppet Acceptance – github.com/puppetlabs/puppet-acceptance
- 12. Crafting Chef • TDD your infrastructure – leopard.in.ua/2013/12/01/chef-and-tdd/ • ChefSpec – github.com/sethvargo/chefspec • FoodCritic – acrmp.github.io/foodcritic/
- 13. Infrastructure Integration Testing • serverspec.org • Test server state via ssh access • Awesome, but not quick 17/07/2014 @danielbryantuk
- 14. Summary Software Craftsmanship principles are not only relevant to the application code It’s turtles all the way down… …including the deployment and infrastructure code required for the continuous delivery of valuable software Well crafted DevOps can help here!
- 15. Thanks For Listening • Questions / comments? – daniel.bryant@opencredo.com – @danielbryantuk • This was a beta lightning talk – Let me know if you want to hear more! 17/07/2014 @danielbryantuk